Apparatus for making shoe soles



May 19, 1936- W. J. DE WITT ET A1. 2,041,532

APPARATUS FOR MAKING SHOE SOLES original Filed April 1o, 1935 Erle jqyd 66215 Patented May 1,9, 1936 APPARATUS Foa MAKING suon` soms William I. De Witt and Erle Floyd Beers, Auburn, N. Y., assignors to Dun Deer Sandals, Inc., Auburn, N. Y., a corporation of Delaware Original application April 10, 1933, Serial No. 665,296. Divided and this application May 25, 1935, Serial No. 23,392

6 Claims. (Cl. 12-17) This invention relates to an improvement in justable threaded engagement with the foot |3| apparatus for making shoe soles being a further of the motor frame. Fixed on the bed plate development of the invention disclosed in Patent below the milling cutter is a Work positioning No. 1,843,753 dated February 2, 1932 and has plate |32 having an opening |33 through which 5 for its primary object to provide a machine for the stem |34 of the cutter passes and a depres- 5 trimming one lip of the split edge of a shoe sion |35 which surrounds the opening |33 to sole, one of the steps in the preparation of such receive the cutter. The plate |32 terminates in soles for the assembly of shoe uppers therewith. a tongue |36 which projects beyond the cutter The present application is a division of our coand, as shown in Fig. 6 enters the split |08 in 10 pending application Serial No. 665,296, filed April the sole, while the lower edge of the cutter is 10 10J 1933- received in the depression so that it is out of In the drawing: contact with the lip |06. Mounted upon the bed Fig. 1 is a plan view of one form of m-achine plate is a U-shaped angular guard |31 beembodying the present invention; neath which the sole is fed to the cutter (see l5 Figs. 2 and 3 are iront and side views of such Fig. 5). 15 machine; The blanked and split sole is turned over and Fig. 4 is a sectional View taken along the line pushed below the guard |31 the tongue |36 enter- 4-4 in Fig. 2; ing the split |68 and guiding the lower lip |06 to Fig. 5 is a sectional view of the trimming tool the cutter. The upper lip |01 passes below the in operation upon a shoe sole; tongue and the milling operation continues until 20 Fig. 6 is an enlarged View illustrating the trimthe edge of that lip bears against the plate |32 ming operation; and as shown in Fig. 6. The plate |32 thus acts to Fig. 'l is a plan View of one element of the limit the depth of the milling operation and to machine. insure that the edge of the lower lip is properly The shoe sole |05 having been blanked and the and uniformly finished and that any rough edges 25 edge having been thereafter split in any well are removed. known manner as for example in accordance While one embodiment of this invention has with the disclosure in the above mentioned patbeen shown and described it will be understood ent or application is provided with lower and that We are not limited thereto and that other upper lips |06 and |01 respectively. The present embodiments may be made without departing 30 invention relates to the trimming of the lower from the spirit andscope of the invention as set lip |06 by means, for example, of the machine forth in the following claims. H0. We claim:

The machine ||0 comprises abed plate upon 1. A machine for trimming the lower lip of a posts ||2 and from which depends a wall ||3 shoe sole, the edge of which has been split tov pro- 35 braced by angle brackets I4. An adjustable vide upper and lower lips, comprising a bed plate, frame ||5 carried by the wall ||3 supports a a milling cutter above the bed plate and a stamotor ||6 in the vertical position. Fixed to the tionary positioning plate fixed upon the bed plate shaft ||1 of the motor is a milling cutter ||8 and located between the bed plate and cutter, said which projects above the bed plate as shown for positioning plate having a tongue which enters 40 example in Fig. 5. An undercut channel |20 the split in the sole edge and guides the lower on the Wall H3 receives the e0mp1ementari1y lip into Contact with the cutter while holding the f'ormed tongue |2| on the frame ||5 as shown upper lip out of such contact. in Fig. 4. The frame is raised or lowered rel- 2. A machine for trimming the lower lip of a ative to the wall by an adjllStIlg screw |22 roshoe sole the edge of which has been split to pro- 45 tatably supported in a boss |23 on the frame I5 vide upper and lower lips, comprising a bed plate, and threadedly engaged with a boss |24 on the a milling cutter above the bed plate and a stawall ||3. A slot |25 in the wall allows the free tionary positioning plate iixed upon the bed plate travel of the screw and a knurled wheel |26 at and located between the bed plate and cutter,

the head of the screw which permits its easy rosaid positioning plate having a tongue which 50 tation is yieldably held against unwanted turning enters the split in the sole edge and guides the by a spring strip |21. lower lip into contact With the cutter while hold- At the lower end of the motor shaft is secured ing the upper lip out of such contact, the tongue an antifriction bearing |28 which rests upon a projecting from the upper edge of the positioning cup |29 carried by a stem |30 having an adplate and the upper lip of the sole coacting with 55 the lower edge of said positioning plate below said tongue to determine the extent of the trimming operation.

3. A machine for trimmng the lower lip of a shoe sole the edge of which has been split to provide upper and lower lips, comprising a. bed plate, a milling cutter above the bed plate and a stationary positioning plate fixed upon the bed plate and located between the bed plate and cutter, said positioning plate having a tongue projecting therefrom, a depression being formed in the upper surface of the positioning plate and tongue which receives the lower edge of the cutter, said tongue being adapted to enter the split in the sole edge whereby the tongue holds the upper lip out of contact with the cutter and the tongue and depression coact to guide the lower lip into contact with the cutter above the lower edge thereof.

4. A machine for trimming the lower lip of a shoe sole the edge of which has been split to provide upper and lower lips, comprising a bed plate, a milling cutter above the bed plate and a positioning plate located between the bed plate and cutter, said positioning plate having a tongue projecting therefrom, a depression being formed in the upper surface of the positioning plate and tongue which receives the lower edge of the cutter, said tongue being adapted to enter the split in the sole edge whereby the tongue holds the upper lip out of contact with the cutter and the tongue and depression coact to guide the lower lip into contact with the cutter above the lower edge thereof, the tongue projecting from the upper edge of the positioning plate, and the upper Y lip of the sole coacting with the lower edge of the positioning plate below the tongue to determine the extent of the trimming operation.

5. A machine for trimming the lower lip of a shoe sole, the edge of which has been split to provide ,upper and lower lips, comprising a bed plate, a milling cutter above the bed plate, a positioning plate between the cutter and bed plate, a guard between which and the bed plate the sole is fed to the cutter, a shaft carrying said cutter, means for rotating said shaft, means for shifting said shaft axially to raise or lower said cutter, and a tongue projecting from said positioning plate which enters the split in the edge of the fed sole thereby guiding the lower lip into contact with the cutter and holding the upper lip out of such contact.

6. A machine for trimming the lower lip of a shoe sole, the edge of which has been split to provide upper and lower lips, comprising a bed plate, a milling cutter above the bed plate, a positioning plate between the cutter and the bed plate, a guard between which and the bed plate the sole is fed to the cutter, a shaft carrying the cutter, means for rotating said shaft, a tongue projecting from said positioning plate which enters the split in the edge of the fed sole and holds the upper lip out of contact with the cutter, and said positioning plate having a depression in the face thereof to receive the lower edge of the cutter so that the lower lip is guided by said tongue into contact with the cutter above the lower edge thereof.

WILLIAM J. DE WITT. ERLE FLOYD BEERS. 

